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Submission + - My WiFi can hear you breathing (i-programmer.info)

mikejuk writes: A team of researchers has devised a novel use for WiFi that could potentially save lives or add to the collection of methods that can be used to snoop on you.
This is another of those chance observations that turned out to be of potentially practical value. Most WiFi devices have a RSS — Received Signal Strength — detector which can be read by software. Someone noticed that when a human stands in front of a WiFi unit then the RSS changed as they breathed in or out — only a small change but any change can be the start of a detection system.

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My WiFi can hear you breathing

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